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a. ng the charge of a neuron b. Changing the polarity of a neural membrane c. Initiating the refractory period of the cell membrane d. Initiating hormone release from the dendrites of a neuron 14. A person who accidentally touches a hot stove immediately withdraws the affected hand. The motor action involved is the result of a. A reflex arc that does not require brain co-ordination b. An automatic reflex regulated by parasympathetic nerves c. An automatic reflex regulated by sympathetic nerves d. A reflex arc that requires brain co-ordination 15. A motor neuron will stimulate an effector if a. The refractory period does not exceed the resting period b. The travelling impulse does not affect the polarity of the axon c. Inhibitory substances prevent an overload at the synaptic cleft d. Sufficient excitatory impulses are received from associate neurons

a. ng the charge of a neuron b. Changing the polarity of a neural membrane c. Initiating the refractory period of the cell membrane d. Initiating hormone release from the dendrites of a neuron 14. A person who accidentally touches a hot stove immediately withdraws the affected hand. The motor action involved is the result of a. A reflex arc that does not require brain co-ordination b. An automatic reflex regulated by parasympathetic nerves c. An automatic reflex regulated by sympathetic nerves d. A reflex arc that requires brain co-ordination 15. A motor neuron will stimulate an effector if a. The refractory period does not exceed the resting period b. The travelling impulse does not affect the polarity of the axon c. Inhibitory substances prevent an overload at the synaptic cleft d. Sufficient excitatory impulses are received from associate neurons

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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13. A nerve stimulus may be an environmental change that is capable of a. Neutralizing the charge of a neuron b. Changing the polarity of a neural membrane c. Initiating the refractory period of the cell membrane d. Initiating hormone release from the dendrites of a neuron 14. A person who accidentally touches a hot stove immediately withdraws the affected hand. The motor action involved is the result of a. A reflex arc that does not require brain co-ordination b. An automatic reflex regulated by parasympathetic nerves c. An automatic reflex regulated by sympathetic nerves d. A reflex arc that requires brain co-ordination 15. A motor neuron will stimulate an effector if a. The refractory period does not exceed the resting period b. The travelling impulse does not affect the polarity of the axon c. Inhibitory substances prevent an overload at the synaptic cleft d. Sufficient excitatory impulses are received from associate neurons
Transcribed Image Text:13. A nerve stimulus may be an environmental change that is capable of a. Neutralizing the charge of a neuron b. Changing the polarity of a neural membrane c. Initiating the refractory period of the cell membrane d. Initiating hormone release from the dendrites of a neuron 14. A person who accidentally touches a hot stove immediately withdraws the affected hand. The motor action involved is the result of a. A reflex arc that does not require brain co-ordination b. An automatic reflex regulated by parasympathetic nerves c. An automatic reflex regulated by sympathetic nerves d. A reflex arc that requires brain co-ordination 15. A motor neuron will stimulate an effector if a. The refractory period does not exceed the resting period b. The travelling impulse does not affect the polarity of the axon c. Inhibitory substances prevent an overload at the synaptic cleft d. Sufficient excitatory impulses are received from associate neurons
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